If I have a string containing about 20 lines of text, I want to get a substring that is between two ()’s on the ninth line how would I go about doing this?

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If the string is definitely on 20 lines, then you can parse out the \n’s using say componentsSeparatedByString:@”\n”, grab the 8th object in this array and then use an NSScanner on it.

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Also can use rangeOfString and substringWithRange to parse the (‘s

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m/((.*?))/g; print $1;

And how would one use this within a Cocoa application?

–> exactly: how does one take advantage of PERL’s fantastic text parsing? is there a simple class for this?

A number of people have written wrappers for various RegularExpressions libraries; AGRegex is highly Cocoaish.